Improvement in alarm-bell attachments



. SHERWOOD.

Alarm-Bell Attachments.

' N0. 142,287. Patented August26,1873.

/% ygwmg UNITED STATES PATENT OFFICE ALLEN snnnwoon, OF AUBURN, NEWYORK.

IMPROVEMENT IN ALARM-BELL ATTACHMENTS.

Specification forming part ,of Letters Patent No. 142,287, dated August26, 1873 application filed March 31, 1873.

To all whom it may concern Be it known that I, ALLEN SHERWOOD, ofAuburn, in the county of Cayuga and State of New York, have inventedcertain new and useful Improvements in Alarm-Bell; and 1 do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to theaccompanying drawings and to theletters of reference marked thereon, which form a part of thisspecification.

The nature of my invention consists in an alarm-bell attached to theknob or knob-stem pf a door, as will be hereinafter more fully set'orth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a perspective view, representing my alarm-bell attached tothe door-knob; and Fig. 2 is a side view of the bell with a section ofthe device for attaching it to the knob'or knob-stem. I

Arepresents an ordinary bell attached to or suspended from aspring-wire, B, which is coiled, as shown in Fig. 1, and to the innerend of this wire is attached a clasp, O. This clasp has one end, a,turned up, with a hole in it, through which the wire B passes, and

the other end of the clasp is attached to or I held by the inner end ofthe wire.

The alarm-bell thus arranged is readily attached, by means of the claspG, to a doorknob, D, when it will readily be seen, the door-knob cannotbe turned ever so little without sounding the alarm.

Persons traveling can carry one of these bells in their valises andattach it at night to the knobs of their room-doors as a simple andeffective burglar-alarm.

I do not confine myself to any particular construction of the clasp O,as any one will answer that will hold the alarm in place.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The clasp 0, having the bell A connected thereto by suitable means,and arranged to be attached by clamping pressure to the knob D,

sfibstantially as and for the purpose specified.

2. The clasp 0, spring B, and bell A, all constructed and arranged to beattached to a doorknob, substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

' ALLEN SHERWOOD.

Witnesses HORACE T. COOK, FANNIE SHERWOOD.

